[time-nuts] Trimble 65256 OCXO
tractorb at ihug.co.nz
Sun Nov 27 02:04:14 EST 2016
This 10 MHz unit has a 5th pin that I can't find any documentation about.
There have been posts in the past that have also indicated its use is
unknown. Looking at the base, the four connections in the corners are known
quantities. (ground, EFC, 10 MHz out and + supply) No. 5 is midway along one
I thought it may be a reference supply for the EFC pin- with a 12.03 volt
supply the unknown pin measures at 2.803 volts-which is usefully above the
required EFC voltage ( ~2.4 volts) to bring it on frequency.
But does anyone have some hard data on this 'unknown' pin?
More information about the time-nuts